楂樿冩ā鎷熻瘯鍗?/p>
(
鍥?/p>
)
涓銆侀夋嫨棰?/p>
(
鏈ぇ棰樺叡
10
灏忛锛屾瘡灏忛
4
鍒嗭紝鍏?/p>
40
鍒?/p>
)
1
锛庡凡鐭ラ泦鍚?/p>
A
锛?/p>
{
}
x
|
x
2
<1
锛?/p>
B
锛?/p>
{
}
x
|log
2
x
<0
锛屽垯
A
鈭?/p>
B
绛変簬
(
)
A
锛?/p>
(
锛嶁垶锛?/p>
1)
B
锛?/p>
(0,1)
C
锛?/p>
(
锛?/p>
1,0)
D
锛?/p>
(
锛?/p>
1,1)
绛旀
B
瑙f瀽
鐢遍寰?/p>
A
锛?/p>
{
x
|
锛?/p>
1<
x
<1}
锛?/p>
B
锛?/p>
{
x
|0<
x
<1}
锛?/p>
鎵浠?/p>
A
鈭?/p>
B
锛?/p>
(0,1)
锛?/p>
2
锛庡凡鐭ュ弻鏇茬嚎鐨勪腑蹇冨湪鍘熺偣锛岀劍鐐瑰湪鍧愭爣杞翠笂锛屼竴鏉℃笎杩戠嚎鏂圭▼涓?/p>
3
x
锛?/p>
4
y
锛?/p>
0
锛屽垯璇ュ弻鏇茬嚎
鐨勭蹇冪巼鏄?/p>
(
)
A.
5
3
B.
5
4
C.
4
3
鎴?/p>
5
3
D.
5
3
鎴?/p>
5
4
绛旀
D
瑙f瀽
3
x
锛?/p>
4
y
锛?/p>
0
鈬?/p>
y
锛濓紞
3
4
x
锛?/p>
褰撶劍鐐逛綅浜?/p>
x
杞存椂锛?/p>
b
a
锛?/p>
3
4
鈬?/p>
b
2
a
2
锛?/p>
9
16
锛?/p>
鑰?/p>
c
2
锛?/p>
a
2
锛?/p>
b
2
锛?/p>
鎵浠?/p>
c
2
锛?/p>
a
2
a
2
锛?
9
16
鈬?/p>
e
锛?/p>
c
a
锛?/p>
5
4
锛?/p>
褰撶劍鐐逛綅浜?/p>
y
杞存椂锛?/p>
b
a
锛?/p>
4
3
鈬?/p>
b
2
a
2
锛?/p>
16
9
锛?/p>
c
2
锛?/p>
a
2
锛?/p>
b
2
鈬?/p>
c
2
锛?/p>
a
2
a
2
锛?/p>
16
9
鈬?/p>
e
锛?/p>
c
a
锛?/p>
5
3
.
3
锛庡鏋滃疄鏁?/p>
x
锛?/p>
y
婊¤冻鏉′欢
飪?/p>
飪?/p>
飪?/p>
飪?
飪?/p>
x
锛?/p>
y
锛?/p>
1
鈮?/p>
0
锛?/p>
y
锛?/p>
1
鈮?/p>
0
锛?
x
锛?/p>
y
锛?/p>
1
鈮?/p>
0
锛?/p>
閭d箞
z
锛?/p>
2
x
锛?/p>
y
鐨勬渶澶у间负
(
)
A
锛?/p>
2
B
锛庯紞
2
C
锛?/p>
1
D
锛庯紞
3
绛旀
C
瑙f瀽
鐢辩害鏉熸潯浠?/p>
飪?/p>
飪?/p>
飪?/p>
飪?
飪?/p>
x
锛?/p>
y
锛?/p>
1
鈮?/p>
0
锛?
y
锛?/p>
1
鈮?/p>
0
锛?
x
锛?/p>
y
锛?/p>
1
鈮?/p>
0
鐢诲嚭鍙鍩熷鍥句腑闃村奖閮ㄥ垎鎵绀?/p>
(
鍚竟鐣?/p>
)
锛?/p>
鍐嶇敾鍑虹洰鏍囧嚱鏁?/p>
z
锛?/p>
2
x
锛?/p>
y
濡傚浘涓繃鍘熺偣鐨勮櫄绾匡紝
骞崇Щ鐩爣鍑芥暟鏄撳緱杩囩偣
A
(0
锛岋紞
1)
澶勬椂鍙栧緱鏈澶у硷紝
浠e叆寰?/p>
z
max
锛?/p>
1.